| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a problem point by sampling a natural stone, and bend the cross sectional shape of the slope of a retaining wall. SOLUTION: A plurality of concrete blocks 1a, 1b, 1c, 1d, 1e extended on a front end 2 forming an imitation stone 6 and the rear side of the front end and comprising stays 3 making a cross section area smaller than the front are mutually laterally connected on at least the front end out of the front end and the rear end.
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